Blood Relation Questions for OICL AO 2025 Exam, Get Free PDF

Blood Relation is a high-scoring topic in the OICL AO Reasoning section. Questions look simple but require clarity in family hierarchy, gender identification and generational shifts. Once you understand the basic patterns, you will be able to solve most questions in under 30–40 seconds. In this guide, you will learn what Blood Relation means, the important types asked in the exam, and easy solved examples to help you understand how to approach each pattern.

What Blood Relation Means?

Blood Relation refers to the set of questions that test your ability to interpret relationships within a family. You are given one or more statements about how people are related. Your task is to connect the chain correctly and determine the final relationship.

To solve these questions, always track three things
• Generation shift
• Gender identification
• Direction of relationship (A to B or B to A)

Understanding these three elements makes the entire topic predictable and very scoring.

Download Free PDF of Blood Relation Questions for OICL AO Exam 

In this section, we are providing a free PDF of the Blood Relation Questions for the OICL AO Exam. The PDF is curated by our experts after analysing trends from previous years. 

Types of Blood Relation Questions with Examples and Solutions

Below are the commonly asked patterns in the OICL AO Reasoning paper, explained in your writing style with short solved examples.

Direct Blood Relation Questions

These involve simple statements like mother, father, brother or sister. They are the easiest and generally asked to check your basic understanding.

Example
A is the mother of B. B is the brother of C. What is A to C?

Solution Approach
A → mother → B
B → brother → C
If A is mother of B, she is also mother of C.
Answer Mother

Indirect or Coded Relationship Questions

Here symbols replace relations. You must decode each symbol and build a chain.

Example
A @ B means A is the father of B
A # B means A is the sister of B
C # D @ E. How is C related to E?

Decoding
C # D → C is the sister of D
D @ E → D is the father of E

Build the chain
C → sister → D
D → father → E

So C is aunt of E.
Answer Aunt

Multiple Generation Questions

These cover grandparents, grandchildren, uncles, aunts and nieces. Drawing a small family tree helps.

Example
A is the mother of B. B is the father of C. C is the mother of D. What is A to D?

Chain
A → mother → B
B → father → C
C → mother → D

Here A is two generations above D.
Answer Great-grandmother

Blood Relation Inside a Puzzle

In recent OICL AO exams, puzzles may include family connections along with seating or floor information. Your job is to decode the relationship while also solving the arrangement.

Example
Six persons sit in a row facing north. B sits third to the right of A. C is the sister of A. D is the father of C. Who is D to B?

Logic
A and C are siblings
D is father of both

Even without solving the full arrangement, relationship is clear.
If D is father of A, he is one generation above A and C. B’s position does not affect the relation.
Answer D is the father-in-law or father depending on gender, but since the question asks D to B, we only know D is a father-figure one generation above A.
If no marriage link given, consider only direct blood.
Answer No direct blood relation; D is a senior generation member.
(Exam will usually phrase it clearly like “What is D to C”.)

Double Lineage or Compound Relationship Questions

These involve both sides of the family such as in-laws, siblings of spouses and maternal/paternal links.

Example
A is married to B. C is the brother of B. D is the son of C. What is A to D?

Chain
A ↔ B (spouses)
C → brother → B
D → son → C

If C is B’s brother, A becomes D’s aunt (through marriage).
Answer Aunt (Paternal Aunt-in-law)

How to Solve Blood Relation Questions Step-by-Step

To master this topic, follow a structured approach instead of guessing.

Step 1: Understand and Identify the Keywords

First, read the question slowly and underline relationship indicators like father, wife, daughter, uncle, maternal, paternal or brother-in-law. These keywords define the direction and generation shift.
Example
“A is the mother of B” means A moves one generation above B and gender is female.

Step 2: Break the Statement into Parts

Long statements should always be broken into smaller links. Connect A to B, then B to C and so on.
For example
“A is the brother of B and B is the mother of C”.
Break it as
A → brother → B
B → mother → C
This prevents confusion when relationships are lengthy.

Step 3: Draw a Family Tree

Create a small diagram using symbols. Use + for male, – for female and vertical lines for parent-child relationships. Horizontal lines can show spouse relations.
For example
A – B means siblings.
A + B means spouses.
This visual approach reduces wrong assumptions and makes multi-generation questions easier.

Step 4: Track Gender Carefully

Many questions deliberately hide or twist gender information. If the gender is not clearly given, mark it as unknown and deduce it at the end. Never assume a gender unless the question confirms it.

Step 5: Convert Coded Relations Systematically

When symbols like @, $, %, # are used, write their meaning on the side. Then decode the statement from left to right.
For example
A @ B means A is the father of B
A # B means A is the sister of B
So A @ B # C means
A → father → B
B → sister → C
Now you can build the chain easily.

Step 6: Use Reverse Relation Logic

If the question asks “How is A related to B”, always put yourself in B’s position and read the relationship backward.
Example
“A is the uncle of B” means
From B’s view, A is the father’s or mother’s brother.
This reverse logic avoids incorrect answers.

Step 7: Practice Mixed Questions

Blood Relation is often combined with direction, coding or puzzles. Practising mixed questions helps you solve quickly in the exam even when the question looks complex.

Final Preparation Strategy for OICL AO Aspirants

Blood Relation becomes extremely scoring when you focus on clarity and consistent practice. Maintain a notebook of patterns, solve 40–50 questions from different types and take sectional mocks to strengthen accuracy. In the exam, direct and coded questions can be solved in under 30 seconds, while multi-generation or puzzle-based relations may take slightly more time but are still manageable with diagrams.

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